{"id":1905034,"url":"https://alion.io/job/itds-poland-senior-java-developer-event-driven-banking-systems","title":"Senior Java Developer - Event-Driven Banking Systems","company":{"id":879,"name":"ITDS Poland","domain":"itds.pl","url":"https://alion.io/company/itds","size_band":"201-500","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":18900,"max":24150,"currency":"PLN","period":"month","gross":null,"usd_annual":74676},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Dynatrace","optional":false},{"name":"Hibernate","optional":false},{"name":"Java","optional":false},{"name":"Kanban","optional":false},{"name":"PostgreSQL","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Redis","optional":false},{"name":"Scrum","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-10-05T12:20:16Z","employer_posted_date":null,"last_verified_at":"2026-10-05T12:20:16Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Unleash innovation - shape the future of banking with cutting-edge event-driven systems!\nWarsaw-based opportunity with hybrid work model.\nAs a Senior Java Developer, you will be working for our client, a leader in the financial services industry, focused on building advanced backend systems for a transactional and investment ecosystem. You will contribute to the development of reliable, scalable solutions that drive digital transformation within the banking environment, fostering innovation and supporting career growth.\nYour main responsibilities:\nDevelop and maintain backend services in Java (21+) using Spring Boot 3 to support financial transactions.\nDesign solutions aligned with Domain-Driven Design (DDD) principles to ensure modularity and maintainability.\nWork with relational data models and PostgreSQL to ensure data integrity and performance.\nBuild reliable, testable code with comprehensive unit and integration tests.\nCollaborate within agile teams (Scrum/Kanban) to deliver high-quality solutions efficiently.\nImplement messaging and event-driven architectures utilizing Kafka and RabbitMQ.\nEnhance system observability and performance using tools like ELK, Dynatrace, and Redis.\nYou're ideal for this role if you have:\n5+ years of professional experience as a Java Developer, with a focus on backend systems.\nStrong knowledge of Java 21+, Spring Boot 3, Hibernate.\nHands-on experience with PostgreSQL and messaging systems such as Kafka or RabbitMQ.\nGood engineering practices including testing, clean code, and system maintainability.\nFluent Polish language skills; good command of English.\nIt is a strong plus if you have:\nExperience in the financial or transactional systems industry.\nFamiliarity with agile methodologies, particularly Scrum or Kanban.\nStrong analytical skills and a proactive approach to problem-solving.\nLanguage required for the role: Polish (good command); English (communicative).\nEligibility to work in Europe: Only candidates with an existing legal right to work in the European Union will be considered for this role.\nInterested? Apply now and include your CV (preferably in English), along with a statement confirming your consent to the processing and storage of your personal data.","description_format":"text","description_chars":2234,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Polish","level":"Advanced (C1)","optional":false},{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Hybrid work"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Services","IT Consulting & Digital Transformation","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-05T12:36:02Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":45,"reasons":["seen:0","win:early","comp:brand"],"computed_at":"2026-10-06T03:13:50Z"},"pay":{"stated_usd_annual":74676,"is_top_pay":false},"html_url":"https://alion.io/job/itds-poland-senior-java-developer-event-driven-banking-systems","json_url":"https://alion.io/job/itds-poland-senior-java-developer-event-driven-banking-systems.json","meta":{"generated_at":"2026-10-06T03:13:50Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4769,"day_limit":5000,"remaining_today":231,"minute_limit":60,"resets_at":"2026-10-07T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":879},"rest":"https://alion.io/mcp/rest/get_company?id=879"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fitds-poland-senior-java-developer-event-driven-banking-systems"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fitds-poland-senior-java-developer-event-driven-banking-systems"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fitds-poland-senior-java-developer-event-driven-banking-systems"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/itds-poland-senior-java-developer-event-driven-banking-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fitds-poland-senior-java-developer-event-driven-banking-systems"}]}